Graphics as signs

Check the library and the web for C.S.Peirce's distinctions between the following kinds of sign, and formulate definitions:

• index,
• icon,
• symbol.

Tasks:

• Search the internet for pages which contain signs of the above sorts.
• Which sorts of sign are characteristically conveyed by graphics, and which by text?
• Is there a fundamental distinction between graphics and text?
• What is `visualisation' in the context of computer graphics?
• Search the web for explanations of computer graphics.
• Search the web for examples of computer art.

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